Task as a child issue of an Epic causes Jira Plan timeline view to not show the progress bar column, more specifically the Progress (Issue Count) bar.
Here is an example. Top epic only has tasks as the issue type as its children, second epic has Stories as the issue type as its children.

Is there a way that I can configure Jira to allow task issue type to roll up to Epics and show the progress bar at Jira Plans Timeline level?
Thanks